Kernel-lowlatency vs kernel-rt

[Ralf Mardorf]

On Fri, 2 Nov 2012 23:58:39 +0100
Ralf Mardorf <ralf.mardorf at alice-dsl.net> wrote:

> Hi :)
> 
> on Ubuntu Studio Quantal I switched to
> $ uname -a
> Linux qrc 3.6.5-rt14 #1 SMP PREEMPT RT Fri Nov 2 21:36:37 CET 2012
> x86_64 x86_64 x86_64 GNU/Linux
> 
> A kernel-rt seems to be much better on my machine.
> 
> With the kernel-lowlatency for a very small audio session,

Resp. a MIDI session using virtual synth.

> CPU usage "< 10%", I get xruns with
> 
> sample_rate=48000
> frames_period=512
> 
> Now, with the kernel-rt everything seems to be [Ok] with
> 
> frames_period=256
> 
> but with frames_period=128 I get xruns again.
> 
> Regards,
> Ralf



Regards,
Ralf